SPARK-2138: TicTacToe - IQ error stanzas must have a child element
To conform with XMPP specifications (and Smacks enforcement of them) add an error condition to the IQ error response that's used to decline a game invitation.
SPARK-2138: TicTacToe - Fix addressing of invite response processing
When processing a response, the 'to' and 'from' addresses have already been swapped.
SPARK-2138: TicTacToe - Process unexpected errors on game invites are reject
When a game inivitation gets answered by a generic error (eg 'feature-not-implemented') rather than an explicit decline, process this as a decline. Prior to this commit, the code threw an exception as it didn't recognize the response as either an invite accept or decline.
SPARK-2138: Reversi - IQ error stanzas must have a child element
To conform with XMPP specifications (and Smacks enforcement of them) add an error condition to the IQ error response that's used to decline a game invitation.
